213124359949265 has 16 divisors (see below), whose sum is σ = 256029197334480. Its totient is φ = 170312944435200.

The previous prime is 213124359949223. The next prime is 213124359949273. The reversal of 213124359949265 is 562949953421312.

It can be written as a sum of positive squares in 8 ways, for example, as 13684324788289 + 199440035160976 = 3699233^2 + 14122324^2 .

It is not a de Polignac number, because 213124359949265 - 2⁸ = 213124359949009 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10789967 + ... + 23295323.

It is an arithmetic number, because the mean of its divisors is an integer number (16001824833405).

Almost surely, 2^{213124359949265} is an apocalyptic number.

It is an amenable number.

213124359949265 is a deficient number, since it is larger than the sum of its proper divisors (42904837385215).

213124359949265 is a wasteful number, since it uses less digits than its factorization.

213124359949265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12509092.

The product of its digits is 125971200, while the sum is 65.

The spelling of 213124359949265 in words is "two hundred thirteen trillion, one hundred twenty-four billion, three hundred fifty-nine million, nine hundred forty-nine thousand, two hundred sixty-five".